Steam-heating apparatus



(No Model.)

H. PARSONS.

STEAM HEATING APPARATUS. No. 406,950. Patented July 16, 1889.

A I r I I I k I, I A

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HENRY PARSONS, OF MARLBOROU HI, MASSACHUSETTS.

STEAM-HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 406,950, dated July 16, 1889.

Application filed May 8, 1888. Serial No. 273,256. (No model.)

To all whom it may concern:

Be it known that I, IIENRY PARSONS, of Marlborough, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Steam-Heating Apparatus, which will, in connection with the accompanying drawings, be hereinafter fully described, and specifically defined in the appended claims.

In said drawings, Figure 1 is a front elevation of that portion of the apparatus which embodies my invention. Fig. 2 is a sectional plan view, the section being horizontal and taken as on line Z Z, Fig. 1, and the view as from above that line. Fig. 3 is a sectional elevation, the section being vertical and taken as on line X X, Fig. 1, and the view as from the left in that figure.

My invention relates to that class of apparatus in which it is desired to employ for heating purposes either direct or exhaust steam, according as economy or necessity may render requisite; and itconsists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring again to the drawings, A is a steam chest or distributor formed with top a, bottom 7), intermediate horizontal partition 0, front (7, back 0, and ends f f, thus constituting an upper inclosed compartment q and a lower compartment 71. An inlet-pipe Zadmits steam to compartment g, and a like pipe on admits steam to compartment 71, one of said pipes (it is immaterial which) being in communication with the steam-spacein the boiler, and the other being connected with the exhaust-pipe of the steam-motor. Upon back c are formed integrally the bosses 1', having each a chamber j, in which are secured the pipes 7.", which in number will correspond with the numberof apartments to be heated. In front wall (7 are secured two rows of valvebodies 92, provided with stems their handwheels (1, stuffing-boxes '11, and valves .9, with packing 2, all as shown in section in Fig. 2; and in rear wall 0 are secured the valve-seats u, coincident with passages 2', which connect The operation or method of utilizing myinvention is as follows: Suppose pipe 7 to be connected with the steam-space of the boiler and pipe at with the exhaust-pipe of the steammotor, and it was desired to heat the rooms with which pipes 7ccomnmnicated before starting the motor, as is the usual case in the morning before working-hours. To accomplish this the valves in compartment 9 would be opened and direct steam would pass from the boiler through pipe 7 to said compartment, thence through openings r to chambcrsj, and thence through pipes 7a to the radiators of the rooms to be heated. \Vhen the time for starting the motor arrived, the valves .9 in compartments 9 would be closed, thus shutting off direct steam, and the valves 8 in compartment 71 would be opened, when the exhaust-steam from the motor would pass through pipe on to said compartment, thence through passages v to chambersj, and thence through pipes 7; to the radiators. If at any time it be necessary to stop the motor, but to continue the supply of steam in the radiators of the heated rooms-as at the noon-hourit is only necessary to again open the valves 8 in compartment y, when direct steam is automatically furnished.

It will be obvious that by mean-s of myimprovement not only may all or any less number, as selected, of the rooms be heated,when either direct or exhaust steam is used for that purpose, but that the rooms to be heated may be apportioned between the direct and exhaust steam by proper use of the valves; and hence when, during the severity of the winter, it might be requisite to heat some of the rooms with direct steam, yet at other times, when less heat was required,.all the rooms could be heated by exhaust-steam, such results are perfectly effected by means of my invention.

It is further to be observed that when the motor is shut down and direct steam is being used for heating it is not material Whether the valves in my distributer that control the the motor is operative and the exhaust-steam is being employed then the valve that controls the direct steam must be closed, for the reason that the same room must at the same time be heated solely by either direct or exhaust steam, as the attempt to use both at exhaust-steam are opened or closed; but when IOO once would cause back-pressure upon the piston of the motor by the direct steam passing through the valves of the exhaust-chamber into the exhaust-pipe of the motor.

My improved steam-distributer may be constru cted with an y desired number of chambers j and pipes 76, as the number of rooms or radiators with which it is to be used may render necessary.

A suitable hand-actuated valve may be inserted in pipe 1 between distributer A and the boiler, and a like valve may be arranged in pipe m between the distributer and the steam-chest of the motor, said valves being placed at the most convenient point in their respective conduits, and in such case said valves may serve as the means for changing from direct to exhaust steam, and vice versa, while valves 8 would in such case be employed to shut off steam from such of pipes 7c as it is not for the time being desired to utilize.

I claim as my invention 1. A steam-distributing apparatus consisting of chest A, having two compartments, with an inlet-pipe for each said compartment, chambers formed in said chest and each communicating with both said compartments, a valve to control each said passage from said compartments to said chambers, and conduits connecting with said chambers, all substantially as specified.

2. The combination of chest A, having compartments g 7L, and inlets Z m for said compartments, respectively, chambersj, each having passage v, communicating with said compartments, valves 8, arranged to control said passages, and conduits 7c, communicating with chambersj, all substantially as specified.

- HENRY PARSONS.

\Vitnesses:

EUGENE IIUMPHREY, 'l. W. PORTER. 

